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2

SOI operates Falkor, which also broadcasts live video. They stream via youtube, currently, as does OET. https://schmidtocean.org/technology/live-from-rv-falkor/ Occasionally other operations, such as Woods Hole, will operate telepresence cruises, but these three are consistent operators in the space as they have dedicated ROVs and satellite equipment/...


2

Supplementing Wolfgang's answer, here's a National Oceanographic and Atmospheric Administration story that talks about the appearance of ocean-bottom artifacts: With legions of people around the world now exploring the seafloor, many are noticing locations along the ocean bottom marked by mysterious formations of grid-like artifacts. These formations ...


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As the other answer suggests, these are sonar surveys of the ocean depths. But the answer is a bit more complicated. The vast majority of the ocean floor has never been mapped. We really only know about the water depth because the water above the sea floor is lighter than if it were rocks. So a deep ocean produces less gravity than a shallow one. And, ...


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